Frequency converter circuit for a radar-based measuring device
US11054512B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2017 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Aug 2, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/282
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a frequency converter circuit for a radar-based distance-measuring device. The core of the frequency converter circuit is a non-linear, high-frequency component, having a frequency connection point and a signal connection point, which serves as a signal input for a low-frequency input signal. On the reception side, the frequency converter circuit comprises at least one receiving antenna for receiving the high-frequency reception signal and a non-linear semiconductor component for downconverting the high-frequency reception signal. The frequency converter circuit therefore uses the effect that, by means of the low-frequency input signal, corresponding harmonic waves are induced at the non-linear, high-frequency component. Furthermore, the high-frequency reception signal is downconverted into a low-frequency evaluation signal, whereby the further determination of the distance can be performed on the basis of the low-frequency evaluation signal, which can be processed more easily.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.